CVS commit: src/sys/external/bsd/drm2/dist/drm/i915/gem

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Fri Jan 19 22:24:38 UTC 2024

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/i915/gem: i915_gem_stolen.c

Log Message:
i915_gem_stolen: Fill sg_pgs, with size/PAGE_SIZE entries.

Use sg_alloc_table_from_bus_dmamem to do this.

i915_gem_mman.c vm_fault_cpu and i915_gem_object_release_mmap_offset
both rely on sg_pgs to be a page array, so providing a table with
only one entry doesn't work (except by accident, if the object is
page-sized anyway).  And they rely on the sg_pgs entries to be
initialized, which we weren't doing before, and which
sg_alloc_table_from_bus_dmamem does for us.

Related to PR kern/57833.

XXX pullup-10


To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 \
    src/sys/external/bsd/drm2/dist/drm/i915/gem/i915_gem_stolen.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.